Ive never played a mario cart game before single player and played this for the first time two nights ago. I won virtually every race in the 3 50cc events finishing top comfortably each time. I also finished top in the first of the 100cc events. Its an entertaining game but I am missing out on shooting people cus I am always in front of them

It should start to get a little harder towards the end of the 100cc series/beginning of 150cc series. Even then, I've never found the game to be difficult in the slightest, just somewhat frustrating.

Mario Kart's definition of 'difficult' is constantly being bombarded with blue/red shells towards the end of the race and rubber-band AI, so don't get too flustered later on. Cheap stuff happens all the time in 150cc mode.

Mario Kart's A.I. has always been "rubber-band" in nature. Very simplistic. Essentially, things get difficult when you are jocking for position in 1st place against Wario or Bowser in almost every track.